5181651534 has 8 divisors (see below), whose sum is σ = 10363303080. Its totient is φ = 1727217176.

The previous prime is 5181651533. The next prime is 5181651599. The reversal of 5181651534 is 4351561815.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

5181651534 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 5181651492 and 5181651501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5181651533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 431804289 + ... + 431804300.

It is an arithmetic number, because the mean of its divisors is an integer number (1295412885).

Almost surely, 2^5181651534 is an apocalyptic number.

5181651534 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5181651534 is a wasteful number, since it uses less digits than its factorization.

5181651534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863608594.

The product of its digits is 72000, while the sum is 39.

The square root of 5181651534 is about 71983.6893608545. The cubic root of 5181651534 is about 1730.4380965848.

The spelling of 5181651534 in words is "five billion, one hundred eighty-one million, six hundred fifty-one thousand, five hundred thirty-four".